<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
#div1 input {background:white;}
#div1 input.active {background:yellow;}
#div1 div {width:200px; height:200px; background:#CCC; display:none;}
</style>
<script>
window.onload=function ()
{
	new TabSwitch('div1');
};

function TabSwitch(id)
{
	var _this=this;
	var oDiv=document.getElementById(id);
	
	this.aBtn=oDiv.getElementsByTagName('input');
	this.aDiv=oDiv.getElementsByTagName('div');
	
	for(var i=0;i<this.aBtn.length;i++)
	{
		this.aBtn[i].index=i;
		this.aBtn[i].onclick=function ()
		{
			_this.fnClick(this);
		};
	}
};

TabSwitch.prototype.fnClick=function (oBtn)
{
	//alert(this);
	for(var i=0;i<this.aBtn.length;i++)
	{
		this.aBtn[i].className=''
		this.aDiv[i].style.display='none';
	}
	oBtn.className='active';
	this.aDiv[oBtn.index].style.display='block';
}
</script>
</head>

<body>
<div id="div1">
<input class="active" type="button" value="aaa" />
<input type="button" value="bbb" />
<input type="button" value="ccc" />
<div style="display:block;">aaa</div>
<div>dfsadf</div>
<div>erwqerwe</div>
</div>
</body>
</html>
